Feeding mechanism for hat-sweat-sewing machines.



0. A. DEARBORN.

FEEDING MECHANISM FOR HAT SWEAT SEWING MACHINES. APPLICATION FILED JUNE27,1908.

Patented Jan. 19, 1909.

3 SHEBTSSHEET 1.

we Mr m: NORRIS PETERS cc., WASHINGTON, o. c.

c. A. DEARBORN. FEEDING MECHANISM FOR HAT SWEAT SEWING MACHINES.

APPLIUATION FILED JUNE 27, 1908.

Patented Jan. 19, 1909.

3 SHEETS-SHEET 2.

THE uomzls Psrznsgm, WASHINGTON, 0. c,

G. A. DEARBORN. FEEDING MECHANISM FOR HAT SWEAT SEWING MACHINES.APPLICATION FILED JUNE 27,1908.

Patented Jan. 19; 1909.

3 SHEETS-SHEET 3.

UNITED STATES riirnnr error.

CHARLES A. DEARBORN, OF NEW YORK, N. Y., ASSIGNOR, BY MESNE ASSIGNMENTS,TO EMPIRE MACHINE COMPANY, OF PROVIDENCE, RHODE ISLAND, A CORPORATION OFRHODE ISLAND.

FEEDING MECHANISM FOR HAT-SWEAT-SEWING MACHINES.

Specification of Letters Patent.

Patented Jan. 19, 1909.

Original application filed July 9, 1902, Serial No. 114,875. RenewedDecember 12, 1907, Serial No. 406,201.

Divided and this application filed June 2'7, 1908.

T 0 all whom it may concern:

Be it known that 1, CHARLES A. DEAR- BORN, a citizen of the UnitedStates, and a resident of New York city, in the county of New York andState of New York, have invented certain new and useful Improvements inFeeding Mechanism for Hat- Sweat-Sewing Machines, of which the followingis a specification.

The present application constitutes a division of the application,Serial No. 406,201, filed by Charles A. Dearborn on December 12, 1907,for Letters Patent No. 894,819, dated August 4, 1908 for improvements insewing machines.

The invention relates to improvements in feeding mechanism for hat sweatsewing machines, and consists in the novel features, arrangement andcombinations of parts hereinafter describedand particularly pointed outin the claims.

I present my invention in this application as embodied in a hat sweatsewing machine comprising the needle mechanism, looper actuatingmechanism, a looper, and novel means for feeding the hat along the pointof sewing, said feeding means constituting my present invention andcomprising as an essential feature, a positively driving circular ringor frame supporting the hat and effecting its intermittent feed motionalong the point of sewing. The circular feed ring or frame for feedingthe hat will be driven from the driving shaft of the machine, as by apawl and ratchet mechanism, and preferably the said feed ring or framewill be supported within the upper edges of a tiltable but otherwisestationary circular frame equipped with a suitable handle by which itmay be tilted, and a spring for pressing the edge of the feed ring orframe in a direction against the presser foot.

The invention will be fully understood from the detailed descriptionhereinafter presented, reference being had to the accompanying drawings,in which:-

Figure 1 is a side elevation of a hat sweat sewing machine constructedin accordance with and embodying the invention; Fig. 2

is a top view of same; Fig. 3 is a side elevation of same, this figureshowing the opposite side of the machine to that illustrated in Fig. 1and Fig. 4 is a detached sectional Serial No. 440,739.

view through a portionof same on the dotted line 44 of Fig. 3.

In the drawings 15 denotes the general frame of the machine, this framecomprising the base 16 having at its rear end the integral memberconsisting of the vertical standard 17 and forwardly extendinghorizontal arm 18, and said base 16 having at its front end theforwardly projecting segmental arms 19, 20, at whose forward ends arethe vertical standards 21, 22, which at their upper ends receive thescrew trunnions 23 supporting upon their inner ends the circular frame24, which is capable of having a tilting or rocking motion upon the saidtrunnions 23 but is otherwise stationary.

The frame 24 supports and guides the circular feed ring 25, which has atoothed upper edge to engage the hat, and an annular projecting shoulder26 which rests upon the upper edge of the frame 24 and is formed withratchet teeth throughout its entire eX- tent. The lower edge of the feedring 25 sets within the u per edges of the frame 24, while the saidshoulder 26 rests upon the upper edge of said frame, and the feed ring25 which is adapted to rotate upon the upper edge of the frame 24, isheld in position upon the latter by means of the lips 27 (Figs. 1 and8), which are fastened at their lower ends by screws to the frame 24 andat their upper ends pass around the annular shoulder 26 and enter anannular groove 28 formed in said ring 25 above said shoulder. The lips27 by passing over the annular shoulder 26 prevent the ring 25 fromescaping upward from the frame 24 but do not interfere with theintermittent rotation of said ring upon the upper edge of said frame.

The feed ring 25 receives its intermittent motion from the driving shaft29 through the eccentric 30 thereon, the eccentric rod 31 (Fig. 3)connected at its upper end with said eccentric and at its lower endpivotally secured to the rod 32, the said rod 32 and the pawl 33, thelatter being carried by the eX- tension 34 at the front end of said rod32 and being in engagement with the ratchet teeth on the annularshoulder 26 of said feed ring 25. The rod 32 extends frontwardly fromthe eccentric rod 31 and at the lower portion of its front end is formedwith the extension 35 which is equipped with a bearing hub 36 mountedupon the horizontal stud 37. The eccentric rod 31 is given asubstantially vertical movement from the eccentric 30, and the rod 32,is, by means of the rod 31, given an oscillatory or rocking motion onthe stud 37, thereby causing the pawl 33 to have a forward and backwardmovement and enabling said pawl on its forward thrust to impart alimited rotary motion to the feed ring 25. While moving rearwardly thepawl 33 will slip over the ratchet teeth on the ring 25, and at suchtime the said ring will be prevented from having any reverse movement bymeans of a locking dog or pawl 38 pivotally secured upon the upper endof the vertical standard 22. The pawl 33 is secured upon the upper endof apin 39 carried by the extension 34 of the rod 32, and upon this pin39, as shown in Fig. 3, is provided a spring which acts to yieldinglypress the engaging edge of the pawl 33 against the ratchet teeth of theshoulder 26. During the rotation of the driving shaft 29 the feed ring25 is, by the means just described, given an intermittent rotary motionupon the upper edge of the circular frame 24 for the purpose of feedingthe edges of the hat and hat sweat to the sewing mechanism.

Upon the front end of the horizontal arm 18 of the machine frame issecured a stationary presser-foot 40 having a concave lower end or lip41 upward against which the inner or rear edge of the feed ring 25presses, said feed ring 25 having a yielding or spring tension upward atits inner or rear edge against the said presser-foot owing to theinterposition of the coiled spring 42 between the base of the generalframe of the machine and thehandle 43 (Fig. 1) fastened to the circularframe 24. The coiled spring 42' is held upon a pin 44 which extendsfreely through the handle 43, and the said spring is permitted toyieldingly press the inner or rear edge of the feed ring 25 upwardagainst the presser-foor because of the fact that the circular frame 24su porting said feed ring is pivotally mounted between the upper end ofthe standards 21, 22. In the employment of the feed ring 25 the crown ofthe hat is pressed downward within said ring and the circular frame 24,and the brim of the hat is folded down upon the exterior sides of thesaid feed ring and frame, the then upper edges of the hat along the lineof the inner edge of the brim and the outer edge of the hat sweat at therear edge of the feed ring 25, being by means of the spring 42, held upagainst the concave lower ed e of the li 41 of the presser-foot 40. Inor er to ena le the convenient a' plication of the hat to the feed ring25, elow the presser-foot 40, I mount the circular frame 24 a pivotalmanner and provide said frame wit the handle 43, the latter enabling theoperator to ress downward the inner or rear side of t e frame 24 andring 23, whereby a substantial clearance is secured between the upperedge of the ring 25 and the lower end of the presser-foot 40 for theintroduction of the hat below said foot. The spring 42 exerts firmupward pressure against the frame 24, but the force of this spring maybe readily overcome by the operator owing to the fact that the handle 43is of substantial character and extends rreawardly to a sufficientextent to enable, when pressure is applied thereupon, the convenientlowering of the inner or rear end of the frame 24 against the stress ofthe spring 42.

The driving shaft 29 will be equipped with a usual belt and hand wheel45, the aforesaid eccentric 30 the eccentric 46 from which the rockshaft 47 will be actuated, a balance weight 48 in the form of a halfdisk, and an oblique eccentric 49 receiving the eccentric strap 50 andcooperating therewith to impart the proper movement, as hereinafterexplained, to the looper 51. The belt and hand wheel 45 and balanceweight 48 are usual in this art and require no special description. Theeccentric 46 is rigid on the end of the driving shaft 29 and isconnected by. a strap 52 with the longitudinally reciprocatory rod 53whose front end is pivotally connected by a pin 54 with the lower endofa crank arm 55, whose upper end is rigidly secured upon the end of therock shaft 47, the purpose of the eccentric 46, rod 53 and crank arm 55being to impart the proper rocking motion to the shaft 47 and the partsconnected therewith. The shaft 47 is mounted in bearings at the frontend of the arm 18 of the general frame of the machine, and upon its lefthand end the said shaft 47 carries the said crank arm 55, while upon theright hand" end of the said shaft 47 is secured the crank arm 56carrying the needle 57 which preferably will be curved, as in Fig. 1.The needle 57 under the rock ing motion of the shaft 47 will perform itsknown motion, carrying the thread back and forth through the fabric.

The looper 51 is carried in the forward end of the looper rod 68, whoseother end is pivotally connected with the eccentric'strap 50 on theoblique eccentric 4 9, and the forward portion of the looper rod 68 is:supported on the outer end of a crank pin 74 carried by the crank arm 75(Fig. 2) which is adapted to have a swinging or oscillatory motionsothat the looper rod may perform itsforward and backward motions underthe influence of the eccentric 4-9. The connection of" the looper rod 68with the crank pin 74: is by means of a ball and socket joint, wherebysaid rod'i's permitted to have the proper angular movement under theinfluence of the oblique eccentric 49. The present invention is notlimited to any special needle and loo er mechanisms, and hence a moredetaile explanation of 122 these parts of the sewing machine illustratedis not necessary herein.

The special sewing mechanism illustrated in the drawings is shown anddescribed in the aforesaid Letters Patent No. 894,819 granted August 4:,1908 to Charles A. lJearborn.

The present invention, as will be understood from the foregoingdescription, pertains more essentially to the feeding mechanism of themachine, and this feeding mechanism is not limited to the employmenttherewith of any special sewing mechanism.

he operation of the machine hereinbefore 'oescribed will be largelyunderstood from the foregoing eXple rations, and hence but a brieffurther reference to the operation of the machine will be necessary. fihen the machine is employed for sewing linings or sweat bands into hats,the crown of the hat will be pressed downward through the fee-d ring 25and supporting frame 24 and the brim of the hat will be turned downwardover the outer edges of the said ring 25. In order to facili tate theintroduction of the hat to the feed ring 25 and below the ii 41 of thepresserfoot, the operator will ti t the said ring and the frame 24downwardly and rearwardly by pressing upon the handle 43 and compressingthe spring 42, and after the hat has been introduced to position thespring 42 will maintain in a suitable manner the firm relation of thehat to the feed ring and presser-foot. The hat being in position and themachine being set in motion, the needle 57 will be caused to perform itsmotion from the driving shaft 29, rock shaft 47 and needle carrying arm56, while at the same time the oblique eccentric 49 will drive thelooper rod and the ordinary eccentric 30 will, through intermediatemechanism, impart an intermittent feed motion to the ring 25 and the hatheld thereon. The feed ring 25 is driven by means of a pawl 33, and thispawl is given its motion from the eccentric 30, the rod 31 and rockingarm or frame 32. The movement of the sewing needle is not of unusualcharacter.

The feed ring 25 having a toothed or roughened edge or surface to engagethe hat and bein positively driven from the driving shaft of the machineassures in a convenient and certain manner the correct feeding of thehat to the sewing needle, and I regard the positively driven feed ring25 for supporting and feeding the hat as of great importance and novel.

I am aware that hats have been supported within circular frames, but inaccordance with my invention the ring 25 not only supports the hat butis a positively driven feed element for the hat. By providing the feedring with the toothed or roughened edge or surface for engaging the hat,the latter is compelled to travel with the, ring, it being the purposeof this portion of my invention hat the ring and hat shall traveltogether i and that the hat shall not travel independently of the ringor the ring independently of the hat.

What I claim as my invention and desire to secure by Letters Patent, is

1. In a hat sweat sewing machine, suitable sewing mechanism, combinedwith feeding mechanism comprising a circular feed-ring having a toothedupper edge and entirely open to receive the crown of an inverted hatwith the brim of the hat extended over said upper edge, ratchet teeth onthe side of said ring, a presser-foot to aid in binding the hat on saidupper edge, an open circular frame supporting and guiding said openring, a pawl cooperating with said side ratchet teeth and means foroperating said pawl from the main shaft of the machine for intermittently rotating said open ring; substantially as set forth.

2. In a hat sweat sewing machine, suitable sewing mechanism, combinedwith feeding mechanism comprising a circular feed-ring having a toothedupper edge and entirely open to receive the crown of an inverted hatwith the brim of the hat extended over said upper edge, ratchet teeth onthe side of said ring, a presser-foot to aid in binding the hat on saidupper edge, an open circular frame supporting and guiding said openring, means pivotally supporting said open frame so as to ermit it andsaid ring to be tilted, a spring acting to press a portion of the upperedge of said ring against said presser foot, manually operative meansfor depressing said edge of the ring from said presser foot, a pawlcooperating with said side ratchet teeth and means for operating saidpawl from the main shaft of the machine for intermittently rotating saidopen ring; substantially as set forth.

3. In a hat sweat sewing machine, suitable sewing mechanism, combinedwith feeding mechanism comprising a circular feed-ring having a toothedupper edge and entirey open to receive the crown of an inverted hat withthe brim of the hat extended over said upper edge, a resser foot to aidin binding the hat on saic upper edge, an open circular frame supportingand guiding said open ring, and pawl and ratchet mechanism operable fromthe driving shaft for imparting to said ring an intermittent rotarymotion timed with the sewing mechanism; substantially as set forth.

4. In a sewing machine, suitable sewing mechanism, combined with theopen circular feed ring to receive, support and feed the work, a presserfeet, a tiltable frame su porting and guiding said feed ring, the hand econnected wit i said frame for aiding in tilting the same, the springpressing one portion of said feed ring and frame toward the presserfoot, and means for imparting to said feed ring an intermittent rotarymotion timed with the actionof the sewing mechanism; substantially assetforth;

5. In a hat, sweat sewing machine, suitable sewing mechanism, combinedwith feeding, meChaIHSIIl' comprising a circular feed-ring frame suporting and guiding sai open ring, means-ti tably mounting said frame,meansholding said frame normally stationary with the edge of said ringpressed against said presser foot, and pawl and ratchetmechanismoperable from the driving shaft for imparting to said ring anintermittent rotary motion timed with the sewing mechanism;substantially asset forth.

6. In a sewing machine, suitable sewing mechanism, combined with theopen circular feed ring to receive, support and feed the work and havingthe annular toothed shoulder 26, the open frame receiving the loweredges of said ring and upon its upper edge shoulder, and means foroperating said pawl from the 'driving'shaft' to'compel said ring to havean intermittent" rotary motion timed with the action of' the sewingmechanism; substantially asset forth; 7

7. In a; sewing machine, suitable sewing mechanism, combined with theopen circular tiltably mounted ring to receive and support the work, apresser foot, the handle for aiding in pressing one edge of'said' ringdown ward from said presser-foot, the spring normally pressing said edgeof said ring toward said presser-foot, and means for feeding the worksupported on said ring ;'substantially as r set forth.

Signed at N ew' York city, in; the county of New York, and State of NewYork, this 24th day of June A. D". 1-908.

CHARLES A. DEARBORN.

Witnesses:

ARTHUR MARION, CHAS; C. GILL.

